Half to edward germain



+u e e h s h t e e h s 2 S E L WM 0.1 L nU-N O G (No Model.)

No. 426,662. Patented Apr. 29, 1890.

WHWESSES 2 Sheets-Sheet 2.

(No Model.)

G. G. OOWLES.

PULLEY.

Patented Apr. 29, 1890.

[/VVEWTUR WIIWESSES UNITED STATES rricn.

GEORGE O. COIVLES, OF EAST SAGINAW, MICHIGAN, ASSIGNOR OF ONE IIALF TO EDIVARD GERMAIN, OF SAME PLACE.

PULLIEY.

SPECIFICATION forming part of Letters Patent No. 426,662, dated April- 29, 1890.

Application filed June 28, 1889.

T0 (0Z7 whom it may concern:

Be it known that I, GEORGE C. COWLES, a citizen of the United States, residing at East Saginaw, county of Saginaw, State of Michigan, have invented certain new and useful Improvement in Drive Pulleys; and I declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention is designed. as an improvement on Letters Patent No. 403,460 issued to me May let, 1889,for pulley, and relates more particularly to the means forseeurin g the removable section in place.

In the drawings, Figure 1 is a side elevation of a portion of a pulley embodying my invention. Fig. 2 is a section at 00 00. Fig. 3 is a perspective view of the locking-head. Fig.4 shows the manner of engaging the locking-bolts to the web. Fig. 5 is a side elevation of a complete pulley.

In carrying out my invention, A represents the web of the pulley, and B the rim.

A is a removable section of the web, to which the removable section of the rim B is attached. The removable section of the rim is similar to that in my previous patent, and is therein more fully shown and described.

0 are plates or flanges secured to both sides of the web adjacent to the shaft D, and preferably formed integral with or attached to said plates is the journal bearing 0'. These plates 0 are open adjacent to the removable section from the shaft outward. In this opening is inserted the locking-head E. One face c of the head E is made convex to form the other side of the shaft or journal bearin This face is preferably of a greater concavity than the convexity of the shaft, and the roller E may thus be used to key the pulley to the shaft. This feature forms no part of my present invention, however. The locking-head E is provided with open boltorifices 0, whereby the bolts I may be Serial No. 315,858. (No model.)

readily swung in and out. These bolts F may be fastened to the web in any convenient manner; but I prefer to make tlie-heads T-shaped and insert them in the orifices c in the plates 0. By cutting away portions of the web the bolts can then be swung up away from the head E, as shown by the dotted lines in Fig. 1, and the head removed.

G is a bolt, one end being flattened and held in the opening 6 in the web 6 of the head by the pin g. The other end extends into the removable web-section A, and may be fastened by the nut g.

To place-the pulley on the shaft, the re movable portions are withdrawn from the pulley and it is passed onto the shaft through the opening left thereby. is then slipped in and the roller E placed between it and the shaft. The bolts F are then dropped into the open bolt-orifices c and the nuts e screwed down snugly to their seats. The removz ble web and rim portion A B is then put in place and connected with the locking-head by the bolt G. The parts can then be drawn tightly together by means of the nut g.

Of course the manner of holding the removable web and rim section in place may be varied without departing from the spirit of my invention, which lies entirely in the provision of the bolts F F, for holding the locking-head in position on the shaft.

\Vhat I claim is- 1. In a pulley having an opening from the center to the periphery, the combination, with a locking-head adapted to fit into said opening adj aeent to the shaft, a separate web and rim section adapted to fill the opening in the web and rim, and means for holding the latter in place, of bolts connected with the web of the pulley for holding said lockinghead in place, substantially as described.

2. In a .drive pulley having an. opening from the center to the periphery, the combination, with a section of rim adapted to fit into said opening, of a locking-head located in the opening adjacent to the center and The locking-head forming a part of the shaft-bearing, bolts In testimony whereof I sign this specificaattached to the Web of the pulley and adapted tion in the presence of two Witnesses.

to enter open bolt orifices in the lookin head for holding the latter in place, and a GEORGE. OOWLES' 5 bolt for connecting the locking-head and re- Witnesses:

movable rim together, substantially as 16- THOMAS P. JOHNSON,

scribed. MERCER D. LINTON. 

